Consider replacing useSyncExternalStore with useState

[inokawa]

useSyncExternalStore is designed to update synchronously for consistency, that means it can't be async or batched.
At least in this lib, which has store by components and have much less possibility of tearing, useState might be more suitable because we can choose sync/async and it will reduce bundle size a bit with removing use-sync-external-store shim package.

reactwg/react-18#86
facebook/react#25191 (comment)